EP3511610A1 - Lampe für ein fahrzeug sowie fahrzeug - Google Patents

Lampe für ein fahrzeug sowie fahrzeug Download PDF

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Publication number
EP3511610A1
EP3511610A1 EP19151148.4A EP19151148A EP3511610A1 EP 3511610 A1 EP3511610 A1 EP 3511610A1 EP 19151148 A EP19151148 A EP 19151148A EP 3511610 A1 EP3511610 A1 EP 3511610A1
Authority
EP
European Patent Office
Prior art keywords
light
light generation
lamp
output unit
turned
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19151148.4A
Other languages
English (en)
French (fr)
Other versions
EP3511610B1 (de
Inventor
Youngil Kim
Yongjae Kim
Myungjae SONG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZKW Group GmbH
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP3511610A1 publication Critical patent/EP3511610A1/de
Application granted granted Critical
Publication of EP3511610B1 publication Critical patent/EP3511610B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
    • B60Q1/38—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps
    • B60Q1/381—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps with several light sources activated in sequence, e.g. to create a sweep effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • a vehicle may include a lamp for securing visibility for a driver (e.g., a head lamp and a fog lamp) and a lamp for notifying a simple signal (e.g., a turn-signal lamp, and a rear combination lamp).
  • a lamp for securing visibility for a driver e.g., a head lamp and a fog lamp
  • a lamp for notifying a simple signal e.g., a turn-signal lamp, and a rear combination lamp.
  • a number of components needs to be provided within a limited volume, and thus, it is necessary to make a vehicle component, such as a lamp, as small as possible.
  • the present invention has been made in view of the above problems, and it is one object of the present invention to provide a lamp for a vehicle, which occupies as less volume as possible while dynamically outputting light in a specific pattern.
  • a lamp for a vehicle including: a cover lens; a housing coupled to the cover lens to form a space; a light output unit comprising a plurality of light generation groups that is arranged in a first direction (a forward direction of travel of the vehicle) inside the space; and a light guide formed in a three-dimensional (3D) shape to guide a light output direction, wherein the light guide comprises: a first surface defining the 3D shape and facing the light output unit, and a second surface defining the 3D shape and forming an acute angle relative to the first surface.
  • a vehicle as described in this specification may include an automobile and a motorcycle.
  • a description will be given based on an automobile.
  • the left side of the vehicle refers to the left side in the forward driving direction of the vehicle
  • the right side of the vehicle refers to the right side in the forward driving direction of the vehicle
  • an array module 200m may include one or more arrays.
  • the array module 200m may include one or more layers, and one array may be disposed on one layer.
  • FIG. 1 is a diagram illustrating the exterior appearance of a vehicle according to an embodiment of the present invention.
  • a vehicle 10 may include a lamp 100.
  • the lamp 100 may include a head lamp 100a, a rear combination lamp 100b, and a fog lamp 100c.
  • the lamp 100 may further include a room lamp, a turn signal lamp, a daytime running lamp, a back lamp, a positioning lamp, etc.
  • the term “overall length” means the length from the front end to the rear end of the vehicle 10
  • the term “overall width” means the width of the vehicle 10
  • the term “overall height” means the height from the bottom of the wheel to the roof.
  • the term “overall length direction L” may mean the reference direction for the measurement of the overall length of the vehicle 10
  • the term “overall width direction W” may mean the reference direction for the measurement of the overall width of the vehicle 10
  • the term “overall height direction H” may mean the reference direction for the measurement of the overall height of the vehicle 10.
  • the lamp 100 may include a light output unit 160, a processor 170, and a power supply unit 190.
  • the input unit 110 may receive a user input for controlling the lamp 100.
  • the input unit 110 may include one or more input devices.
  • the input unit 110 may include at least one selected from among a touch input device, a mechanical input device, a gesture input device, and a sound input device.
  • the input unit 110 may receive a user input for controlling operation of the light output unit 160.
  • the sensing unit 120 may include one or more sensors.
  • the sensing unit 120 may include either or both of a temperature sensor and an illumination sensor.
  • the sensing unit 120 may acquire temperature information of the light output unit 160.
  • the interface unit 130 may transmit at least one of information, data, or a signal, received from another device provided in the vehicle 10, to the processor 170.
  • the interface unit 130 may transmit at least one of information, data, or a signal, generated by the processor 170, to another device provided in the vehicle 10.
  • the interface unit 130 may receive driving situation information.
  • the information about the object may be generated by an object detection apparatus provided in the vehicle 10.
  • the object detection apparatus may detect an object based on sensing data generated by one or more of a camera, a radar, a lidar, an ultrasonic sensor, and an infrared sensor.
  • the object may include a line, another vehicle, a pedestrian, a two-wheeled vehicle, a traffic sign, light, a road, a structure, a bump, a geographic feature, an animal, etc.
  • the navigation information may include at least one of the following: map information, information on a set destination, information on a route to the set destination, and information on various object located along the route, lane information, and information on the current location of the vehicle 10.
  • the navigation information may be generated by a navigation device provided in the vehicle 10.
  • the vehicle state information may be generated based on sensing information about any of various sensors provided in the vehicle 10.
  • the memory 140 may be any of various hardware storage devices, such as a ROM, a RAM, an EPROM, a flash drive, and a hard drive.
  • the memory 140 may store various data for the overall operation of the lamp 100, such as programs for the processing or control of the processor 170.
  • the memory 140 may be classified as a sub-element of the processor 170.
  • the light output unit 160 may include an array module 200m in which multiple groups of micro Light Emitting Diode (LED) chips are arranged.
  • LED Light Emitting Diode
  • the array module 200m may be formed flexible.
  • the array 200 may be formed flexible in a manner such that a Flexible Copper Clad Laminated (FCCL) substrate is disposed on a polyimide (PI) layer and then LED chips each few micrometers (um) are transferred onto the FCCL substrate.
  • FCCL Flexible Copper Clad Laminated
  • PI polyimide
  • the array module 200m may include one or more micro LED arrays 200.
  • the array module 200m may be formed such that a plurality of arrays are stacked on each other.
  • the multiple groups of micro LED chips may have different shapes.
  • a micro LED chip may be referred to as a micro LED light emitting device package.
  • a micro LED chip may include a light emitting device.
  • a micro LED chip may be of a few micrometers (um).
  • a micro LED chip may be 5-15um.
  • the array 200 may include a substrate, and a unit array in which a plurality of micro LED chips are arranged. In the array, one or more unit arrays may be provided.
  • the unit array may be in the shape of a figure of a predetermined area.
  • the unit array may be in the shape of a circle, a polygon, a fan, etc.
  • the position adjustment unit 165 may adjust position of the light output unit 160.
  • the position adjustment unit 165 may control the light output unit 160 to be tilted. Due to the tilting control of the light output unit 160, an output light may be adjusted in an upward-downward direction (e.g., an overall height direction).
  • the position adjustment unit 165 may control the light output unit 160 to be panned. Due to the panning control of the light output unit 160, an output light may be adjusted in a left-right direction (e.g., an overall width direction).
  • the position adjustment unit 165 may further include a driving force generation unit (e.g., a motor, an actuator, and a solenoid) which provides a driving force required to adjust a position of the light output unit 160.
  • a driving force generation unit e.g., a motor, an actuator, and a solenoid
  • the position adjustment unit 165 may adjust a position of the light output unit 160 so that the light output unit 160 outputs a light downward further than when generating a high beam.
  • the processor 170 may be electrically connected to each unit of the lamp 100.
  • the processor 170 may control overall operation of each unit of the lamp 100.
  • the processor 170 may control the light output unit 160.
  • the processor 170 may control the array module 200m on the basis of each region.
  • the processor 170 may control the array module 200m on the basis of each region by supplying a different amount of electrical energy to micro LED chips arranged in each region of the array module 200m.
  • the processor 170 may control the array module 200m on the basis of each layer.
  • a plurality of layers in the array module 200m may be composed of a plurality of arrays 200.
  • the processor 170 may control the array module 200m on the basis of each layer by supplying a different amount of electrical energy to each layer.
  • the power supply unit 190 may supply electrical energy required to operate each unit of the lamp 100.
  • the power supply unit 190 may be supplied with power from a battery inside the vehicle 10.
  • FIGS. 3A to 3C are diagrams illustrating a lamp for a vehicle according to an embodiment of the present invention.
  • FIGS. 3A and 3B are examples of a section of the lamp 100 implemented as a head lamp 100a.
  • the lamp 100 may include a light output unit 160, a reflector 310, and a lens 320a.
  • the reflector 310 may be formed of a highly reflective material, such as aluminum (AL) and silver (Ag), or may be coated on a reflective surface.
  • a highly reflective material such as aluminum (AL) and silver (Ag)
  • the lens 320a may be disposed before the light output unit 160 and the reflector 310.
  • the lens 320a may refract light generated by the light output unit 160 or light reflected by the reflector 310, and allow the refracted light to pass therethrough.
  • the lens 320a may be an aspheric lens.
  • the lens 320a may change an optical path of light generated by the light output unit 160.
  • the light output unit 160 may output light in an overall height direction.
  • the light output unit 160 may output light in an overall length direction.
  • FIG. 3C is a diagram illustrating a lamp for a vehicle according to an embodiment of the present invention.
  • FIGS. 3C is an example of a section of the lamp 100 implemented as a rear combination lamp 200b.
  • the lamp 100 may include a light output unit 160 and a lens 320b.
  • the lens 320b may cover the light output unit 160.
  • the lens 320b may refract light generated by the light output unit 160, and allow the refracted light to pass therethrough.
  • the lens 320b may be an aspheric lens.
  • the lens 320b may change an optical path of light generated by the light output unit 160.
  • the lens 320b may be formed of a transparent synthetic resin or glass.
  • the plurality of micro LED chips 920 may be transferred onto the array 200.
  • Intervals between micro LED chips 920 on the flexible array 200, and a density of micro LED chips 920 (that is, the number of micro LED chips per unit area) on the flexible array 200 may be determined depending on a transfer interval.
  • the array 200 may include a plurality of unit arrays 411 in which different groups of micro LED chips are arranged respectively.
  • the array 200 may include a base 911 and one or more unit arrays 411.
  • the base 911 may be formed of a material such as a polyimide (PI).
  • PI polyimide
  • Each of the unit arrays 411 may be disposed on the base 911.
  • a plurality of micro LED chips 920 may be disposed on each of the unit arrays 411.
  • the unit arrays 411 may be made by cutting a main array that is an FCCL substrate on which a plurality of micro LED chips 920 is disposed.
  • each of the unit arrays 411 may have the shape of a two-dimensional figure (e.g., a circle, a polygon, and a fan) .
  • FIG. 5 is a diagram illustrating an array in which micro LED chips are arranged, according to an embodiment of the present invention.
  • the array 200 may include a polyimide layer 911, a FCC substrate 912, a reflective layer 913, an inter-layer dielectric film 914, a plurality of micro LED chips 920, a second electrode 915, an optical spacer 916, a phosphor layer 917, a color filter film 918, and a cover film 919.
  • the polyimide layer 911 may be formed flexible.
  • the FCCL substrate 912 may be formed of copper.
  • the FCCL substrate 912 may be referred to as a first electrode.
  • the polyimide layer 911 may be referred to as a base.
  • the first electrode 912 and the second electrode 915 may be light transmissive electrodes.
  • the first electrode 912 may be an anode.
  • the second electrode 915 may be a cathode.
  • the first electrode 912 and the second electrode 915 may a metal material which is one or a combination of the following: nickel (Ni), platinum (Pt), ruthenium (Ru), iridium (Ir), rhodium (Rh), tantalum (Ta), molybdenum (Mo), titan (Ti), silver (Ag), tungsten (W), copper (Cu), chromium (Cr), palladium (Pd), vanadium (V), cobalt (Co), niobium (Nb), zirconium (Zr), indium tin oxide (ITO), aluminum zinc oxide (AZO) and Indium Zinc Oxide (IZO).
  • the first electrode 912 may be formed between the polyimide film 911 and the reflective layer 913.
  • the reflective layer 913 may be formed on the FCCL substrate 912.
  • the reflective layer 913 may reflect light generated by the plurality of micro LED chips 920. It is desirable that the reflective layer 913 may be formed of silver Ag.
  • the inter-layer dielectric film 914 may be formed on the reflective layer 913.
  • a micro LED chip 920 may be an LEC chip of 10-100 ⁇ m.
  • the optical spacer 916 may be formed on the inter-dielectric layer 914.
  • the optical spacer 916 may be used to keep a distance between the plurality of micro LED chips 920 and the phosphor layer 917, and may be formed of an insulating material.
  • the phosphor layer 917 may be formed on the optical spacer 916.
  • the phosphor layer 917 may be formed of resin in which a phosphor is evenly distributed.
  • any one selected from a blue light-emitting phosphor, a blue-green light-emitting phosphor, a green light-emitting phosphor, a yellow-green light-emitting phosphor, a yellow light-emitting phosphor, a yellow-red light-emitting phosphor, an orange light-emitting phosphor, and a red light-emitting phosphor may be applied as the phosphor.
  • a phosphor may be excited by light of a first color, which is emitted from the micro LED chips 920, to thereby generate light of a second color.
  • the color film 918 may be formed on the phosphor layer 917.
  • the color filter film 918 may realize a specific color for light which has passed the phosphor layer 917.
  • the color filter film 918 may realize at least one or a combination of red (R), green (G), and blue (B).
  • the cover film 919 may be formed on the color filter film 918.
  • the cover film 919 may protect the array 200.
  • the cover film 919 may be formed on the color filter film 918.
  • the cover film 919 may protect the array 200.
  • the light output unit 160 may include an array module 200m having a plurality of arrays.
  • the light output unit 160 may include a first array 210 and a second array 220.
  • the first array 210 may be different from the second array 220 in terms of at least one of: intervals between a plurality of micro LED chips, positions of the plurality of micro LED chips, and a density of the plurality of micro LED chips.
  • the density of the plurality of micro LED chips indicates the number of micro LED chips per unit area.
  • a first group of micro LED chips may be disposed on the first array 210 in a first pattern.
  • a plurality of micro LED chips included in the first array 210 may be disposed at a first interval.
  • a plurality of micro LED chips included in the first group may be disposed at the first interval.
  • the second array 210 may be configured such that the plurality of micro LED chips included in the second group is disposed in a second pattern which is different from the first pattern.
  • the second pattern may be determined by at least one of the following: intervals between the micro LED chips in the second group, positions of the micro LED chips in the second group, and a density of the micro LED chips in the second group.
  • the plurality of micro LED chips included in the second array 220 may be disposed at an interval as the same as the interval at which the plurality of micro LED chips included in the first array 210 is disposed.
  • the plurality of micro LED chips included in the second group may be disposed at an interval as the same as the interval at which the plurality of micro LED chips included in the first group is disposed.
  • the plurality of LED chips included in the second group may be disposed at the first interval.
  • the plurality of micro LED chips included in the second group may be disposed not to overlap the plurality of micro LED chips included in the first group in a vertical or horizontal direction.
  • the second group of micro LED may be disposed on the second array 220 not to overlap the first group of micro LED chips, when viewed from above with the second array 220 and the first array 210 overlapping each other.
  • the light output unit 160 may include three or more arrays.
  • FIG. 7B is an example of a side view of an integrated array module according to an embodiment of the present invention.
  • the processor 170 may control the array module 200m on the basis of each region (regions 201 to 209).
  • the processor 170 may adjust a light distribution pattern by controlling the array module 200m on the basis of each region.
  • the array module 200m may be divided into a plurality of regions 201 to 209.
  • the processor 270 may adjust an amount of electrical energy to be supplied to each of the plurality of regions 201 to 209.
  • the processor 170 may control the array module 200m on the basis of each layer.
  • the processor 270 may adjust an amount of output light by controlling the array module 200m on the basis of each layer.
  • the array module 200m may be composed of a plurality of layers.
  • the plurality of layers may be composed of a plurality of arrays, respectively.
  • a first layer of the array module 200m may be formed by a first array
  • a second layer of the array module 200m may be formed by a second array
  • FIG. 8 is a diagram illustrating an array module in which a plurality of micro LED chips is arranged, according to an embodiment of the present invention.
  • FIG. 8 shows an example in which the array module 200m includes a first array 210 and a second array 210, but the array module 200m may include three or more arrays.
  • the array module 200m may include a polyimide layer 911, the first array 210, and a second array 220.
  • the polyimide layer 911 may be flexible.
  • the plurality of light generation groups may be arranged in a first direction in the space formed by the cover lens 999 and the housing.
  • the first direction may be defined as the overall length direction of the vehicle, or may be defined as a direction that horizontally forms an angle between 0 degree and 30 degrees relative to the overall length direction.
  • the plurality of light generation groups may be arranged in a direction in which a first surface 1010 of the light guide 1000 extends.
  • Each of the plurality of light generation groups may include at least one light source that converts electrical energy into light energy.
  • each of the plurality of light generation groups may be composed of at least one from among an incandescent lamp, a halogen lamp, a High Intensity Discharge (HID) lamp, a Light Emitting Diode (LED), and a Laser Diode (LD) .
  • an incandescent lamp a halogen lamp
  • HID High Intensity Discharge
  • LED Light Emitting Diode
  • LD Laser Diode
  • FIG. 10 is a diagram illustrating a light guide included in a lamp for a vehicle according to an embodiment of the present invention.
  • the light guide 1000 may include a plurality of surfaces to define a 3D shape.
  • the first surface 1010 may define a 3D shape of the light guide 1000.
  • the first surface 1010 may face the light output unit 160.
  • the first surface 1010 may extend in a first direction.
  • the first surface 1010 may be uneven.
  • the second surface 1020 may form an acute angle relative to the first surface 1010.
  • the second surface 1020 may extend in a second direction.
  • the second direction may be defined as a direction which a straight line faces within a 3D space.
  • the second direction may be defined as a direction different from the first direction.
  • an optic pattern unit 1300 may be formed.
  • the second surface 1200 may be uneven.
  • the third surface 1030 may define the 3D shape of the light guide 1000.
  • the third surface 1030 may form an acute angle relative to the second surface 1020.
  • the third surface 1030 may form a right angle or an obtuse angle relative to the first surface 1010.
  • the first surface 1010, the second surface 1020, and the third surface 1030 may define the circumferential surface of the light guide 1000.
  • the fifth surface may define the 3D shape of the light guide 1000.
  • the sixth surface may define the 3D shape of the light guide 1000.
  • the sixth surface may define the bottom surface of the light guide 1000.
  • Each of the fifth and sixth surfaces may roughly have a triangular shape.
  • the light output unit 160 may include a plurality of light generation groups 1110, 1120, 1130, 1140, and 1150.
  • Each of the plurality of light generation groups 1110, 1120, 1130, 1140, and 1150 may include at least one light source.
  • Each of the plurality of light generation groups 1110, 1120, 1130, 1140, and 1150 may be implemented as one light source or as two or more light sources.
  • a direction, which at least one of the plurality of light generation groups 1110, 1120, 1130, 1140, and 1150 faces, may be different from a direction which the rest of the plurality of light generation groups face.
  • light generated by each of the plurality of light generation groups 1110, 1120, 1130, 1140, and 1150 in the light guide 1000 may have a different optical path.
  • the light output unit 160 may include the first to fifth light generation groups 1110, 1120, 1130, 1140, and 1150.
  • the optic pattern unit may be formed on the second surface 1020.
  • the plurality of optic patterns may be continuously formed on the second surface 1020.
  • the optical path changing unit 1200 may include a plurality of collimators whose number corresponds to the number of light generation groups.
  • the optical path changing unit 1200 may include first to fifth lens 1210, 1220, 1230, 1240, and 1250 to correspond to the first to fifth light generation groups 1110, 1120, 1130, 1140, and 1150.
  • Light generated by the third light generation group 1130 may pass through the third collimator 1230 and be then incident on the third optic pattern 1330.
  • the light incident on the third optic pattern 1330 may be incident on the cover lens 999 because an optical path of the light is changed by the third optic pattern 1330.
  • the third light generation group 1130 may be in the optimized position for allowing the light, having passed through the third optic pattern 1330, to be directed to the cover lens 999.
  • Light generated by the fourth light generation group 1140 may pass through the fourth collimator 1240 and be then incident on the fourth optic pattern 1340.
  • the light incident on the fourth optic pattern 1340 may be incident on the cover lens 999 because an optic path of the light is changed by the fourth optic pattern 1340.
  • the fourth light generation group 1140 may be in the optimized position for allowing the light, having passed the fourth optic pattern 1340, to be directed to the cover lens 999.
  • Light generated by the fifth light generation group 1150 may pass through the fifth collimator 1250 and be then incident on the fifth optic pattern 1350.
  • the light incident on the fifth optic pattern 1350 may be incident on the cover lens 999 because an optic path of the light is changed by the fifth optic pattern 1350.
  • the fifth light generation group 1150 may be in the optimized position for allowing the light, having passed through the fifth optic pattern 1350, to be directed to the cover lens 999.
  • FIGS. 13 to 16 are diagrams illustrating an optic pattern unit of a light guide according to an embodiment of the present invention.
  • Either or both the plurality of protruding portions and the plurality of recessed structures may be referred to as roughness.
  • the size of a protruding portion or a recessed structure may increase as a distance from the light output unit 160 increases.
  • the size of a protruding portion in the second optic pattern 1320 may be greater than the size of a protruding portion in the first optic pattern 1310.
  • the sizes of the plurality of protruding portions in the first optic pattern 1320 may increase as a distance from the light output unit 160 increases.
  • each protruding portion or recessed structure may have a triangular cross section 1361a or 1361b.
  • the plurality of protruding portions or recessed structures may have a sawtooth-shaped cross section.
  • a vertex angle of a protruding portion may be determined by a position of an optic pattern where the protruding portion is placed.
  • a vertex angle of a protruding portion in the first optic pattern 1310 may be smaller than a vertex angle of a protruding portion in the second optic pattern 1320.
  • the first optic pattern 1310 may be closer to the light output unit 160 than the second optic pattern 1320 is.
  • each protruding portion or recessed structure may be a curved shape with a predetermined curvature.
  • one protruding portion or recessed structure may have a partially circular-shaped cross section 1361c or 1361d.
  • each of the plurality of optic patterns may have a different curvature of a protruding portion.
  • a curvature of a protruding portion may be determined by a position of an optic pattern where the protruding portion is placed.
  • a curvature of a protruding portion in the first optic pattern 1310 may be greater than a curvature of a protruding portion in the second optic pattern 1320.
  • the first optic pattern 1310 may be closer to the light emitting part 160 than the second optic pattern 1320 is.
  • the optic pattern unit 1300 may include a plurality of optic patterns.
  • a plurality of protruding portions included in at least one of the plurality of optic patterns may increase in size as a distance from the light output unit 160 increases.
  • an optic pattern may include a first protruding portion 1361 and a second protruding portion 1362.
  • the optic pattern unit 1300 may include a plurality of optic patterns.
  • an optic pattern may include first to fourth protruding portions 1371, 1372, 1373, and 1374.
  • the first to fourth protruding portions 1371, 1372, 1373, and 1374 may be placed closer to the light emitting part 160 in the order named.
  • the first protruding portion 1371 may be positioned next to the second protruding portion 1372, and the third protruding portion 1373 may be positioned next to the fourth protruding portion 1374.
  • An interval between the third protruding portion 1373 and the fourth protruding portion 1374 may be smaller than an interval between the first protruding portion 1371 and the second protruding portion 1372.
  • each of the plurality of light generation groups may emit light to be incident on the cover lens 999, while minimizing a light loss.
  • FIG. 17 is a diagram illustrating an optical path changing unit of a light guide according to an embodiment of the present invention.
  • the plurality of lenses 1210, 1220, 1230, 1240, and 1250 may guide lights generated by the plurality of light generation groups (see the reference numerals 1110, 1120, 1130, 1140, and 1150 in FIG. 12 ) to be incident on the plurality of optic patterns 1310, 1320, 1330, 1340, and 1350.
  • the plurality of lenses 1210, 1220, 1230, 1240, and 1250 may have the same shape.
  • a direction, which at least one of the plurality of lenses 1210, 1220, 1230, 1240, and 1250 faces, may different from a direction which the rest of the plurality of lenses 1210, 1220, 1230, 1240, and 1250 face.
  • At least one of the plurality of lenses may have a shape having one surface flat and the other surface convex, as indicated by reference numeral 1200a or 1220b.
  • At least one of the plurality of lenses may be a collimator, as indicated by reference numeral 1220c.
  • FIG. 18 is a diagram illustrating a relationship between a plurality of optic patterns according to an embodiment of the present invention.
  • the optic pattern unit 1300 may include a first optic pattern 1310 and a second optic pattern 1320.
  • the second optic pattern 1320 may be disposed away from the light output unit 160 at a distance greater than a distance between the light output unit 160 and the first optic pattern 1310.
  • the first optic pattern 1310 may be placed at a location where the shortest distance to the light output unit 160 is a first distance.
  • the second optic pattern 1320 may be placed at a location where the shortest distance to the light output unit 160 is a second distance.
  • the second distance may be greater than the first distance
  • the first optic pattern 1310 may be disposed farther than the cover lens 999 than the second optic pattern 1320 is.
  • the first optic pattern 1310 may be placed at a location from which the shortest distance to the cover lens 999 is a third distance.
  • the second optic pattern 1320 may be placed at a location from which the shortest distance to the cover lens 999 is a fourth distance.
  • the third distance may be greater than the fourth distance.
  • FIG. 19 is a diagram for explaining a plurality of optical paths according to an embodiment of the present invention.
  • the light output unit 160 may include a first light generation group 1110 and a second light generation group 1120.
  • the second light generation group 1120 may be placed closer to the cover lens 999 than the first light generation group 1110 is.
  • the first light generation group 1110 may be placed at a location from which the shortest distance to the cover lens 999 is a first distance.
  • the second light generation group 1120 may be placed at a location from which the shortest distance to the cover lens 999 is a second distance.
  • the second distance may be smaller than the first distance.
  • the optical path changing unit 1200 may include a first collimator 1210 and a second collimator 1220.
  • first collimator 1210 On the first collimator 1210, light generated by the first light generation group 1110 may be incident.
  • the first collimator 1210 may emit the incident light to the first optic pattern 1310.
  • the first collimator 1220 may emit the incident light to the second optic pattern 1320.
  • An optical path 1910 from the first collimator 1210 to the optic pattern unit 1300 may be shorter than an optical path 1920 from the second collimator 1220 to the optic pattern unit 1300.
  • FIGS. 20 and 21 are diagrams for explaining a light output pattern according to an embodiment of the present invention.
  • the light output unit 160 may function as a turn-signal lamp.
  • the processor 170 may control the light output unit 160 to perform sequential lighting operation.
  • the processor 170 may control the light output unit 160.
  • a sequential turn-on operation of the second light generation group, and a sequential turn-on operation of the third light generation group 2130 may be performed at the same time.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP19151148.4A 2018-01-12 2019-01-10 Lampe für ein fahrzeug sowie fahrzeug Active EP3511610B1 (de)

Applications Claiming Priority (1)

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KR1020180004682A KR102116173B1 (ko) 2018-01-12 2018-01-12 차량용 램프 및 차량

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CZ308810B6 (cs) * 2020-03-30 2021-06-02 Varroc Lighting Systems, s.r.o. Světlovodivá optická jednotka pro světelné zařízení motorových vozidel

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Also Published As

Publication number Publication date
EP3511610B1 (de) 2022-06-29
US20190219240A1 (en) 2019-07-18
DE202019000134U1 (de) 2019-05-20
KR20190086313A (ko) 2019-07-22
KR102116173B1 (ko) 2020-05-28
CN110030524A (zh) 2019-07-19
CN110030524B (zh) 2021-07-13
US10731815B2 (en) 2020-08-04

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